Mark "B Dup" Wayne

From WikiGTA - The Complete Grand Theft Auto Walkthrough

GTA Character
Name	Mark Wayne
Nickname	B Dup
Gang	Grove Street Families
Gender	Man
Hometown	Los Santos (Idlewood)
GTA	GTA San Andreas
Voice Actor	Jayceon 'The Game' Taylor

B Dup lives in a small flat in Idlewood, what is Ballas territory. B Dup lives together with Big Bear. In the mission Cleaning the Hood, CJ and Ryder ask B Dup for help. Instead of an ordinary roommate relation B Dup uses Big Bear as a slafe. B Dup don't want to be involved with CJ anymore. Later on in the game you will meet him again. This time he tries to send Big Bear after you, but Big Bear chooses CJ's side and he beats up B Dup and they leave. What happens to B Dup himself is unknown.